HTML code over photo grid

so I need help if you have any ideas! on my webpage I have photo grid to display product photos and so people can play a slideshow, but I had to put paypal html buttons under photos for people to purchase
the problem is when people click on an individual photo to enlarge it they see the photo plus all these floating paypal buttons
I tried formating the buttons by send to back that didnt help
you can see what I mean on the site atNew Love Eyes
just click on a photo and see the floating paypals
HELP how can I stop that???!!!!!
thanks!